@inproceedings{Resnick:1994:GOA:192844.192905,
 author = {Resnick, Paul and Iacovou, Neophytos and Suchak, Mitesh and Bergstrom, Peter and Riedl, John},
 title = {GroupLens: an open architecture for collaborative filtering of netnews},
 booktitle = {Proceedings of the 1994 ACM conference on Computer supported cooperative work},
 series = {CSCW '94},
 year = {1994},
 isbn = {0-89791-689-1},
 location = {Chapel Hill, North Carolina, United States},
 pages = {175--186},
 numpages = {12},
 url = {http://doi.acm.org/10.1145/192844.192905},
 doi = {http://doi.acm.org/10.1145/192844.192905},
 acmid = {192905},
 publisher = {ACM},
 address = {New York, NY, USA},
 keywords = {Usenet, collaborative filtering, electronic bulletin boards, information filtering, netnews, selective dissemination of information, social filtering, user model},
} 

@INPROCEEDINGS{Schein02methodsand,
    author = {Andrew I. Schein and Alexandrin Popescul and Lyle H. and Rin Popescul and Lyle H. Ungar and David M. Pennock},
    title = {Methods and Metrics for Cold-Start Recommendations},
    booktitle = {In Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval},
    year = {2002},
    pages = {253--260},
    publisher = {ACM Press}
}

@INPROCEEDINGS{Breese98empiricalanalysis,
    author = {John S. Breese and David Heckerman and Carl Kadie},
    title = {Empirical Analysis of Predictive Algorithms for Collaborative Filtering},
    booktitle = {},
    year = {1998},
    pages = {43--52},
    publisher = {Morgan Kaufmann}
}

@ INPROCEEDINGS{Tang_uncoveringgroups,
    author = {Lei Tang and Xufei Wang and Huan Liu},
    title = {Uncovering Groups via Heterogeneous Interaction Analysis},
    booktitle = {ICDM},
    year = {2009}
}